Bone SPECT
1. Preparation
a. Patient will consume 16oz of water one hour prior to exam start
2. Isotope administration
a. Patient will receive a 25mci Tc99m MDP intravenously.
3. Camera Parameters SPECT
a. LEHR collimators used for imaging
b. Camera peaked at Tc99m with a 15% window with scatter window
c. Matrix: 128X128
d. Zoom: 1
e. Time: 25 sec per stop
f. Views: 64
g. Rotation: clockwise
h. Start angle: 0
i. Degree rotation: 180
j. Detector configuration 180
k. Orbit non circular
l. Mode step/shoot
m. Patient position: supine
n. Orientation: head out
o. Camera preset: Tc99m-MNG
4. Scanning protocol
a. Patient will empty bladder immediately before being scanned
b. All metal objects removed prior to placing patient of scanning table
c. Patient will be scanned supine position and scanned over the area of interest
d. 1 to 3 bed SPECT imaging with CT imaging for attenuation correction.
e. Additional imaging as requested by radiologist
b. Camera peaked at Tc99m with a 15% window with scatter window
c. Matrix: 128X128
d. Zoom: 1
e. Time: 25 sec per stop
f. Views: 64
g. Rotation: clockwise
h. Start angle: 0
i. Degree rotation: 180
j. Detector configuration 180
k. Orbit non circular
l. Mode step/shoot
m. Patient position: supine
n. Orientation: head out
o. Camera preset: Tc99m-MNG
b. All metal objects removed prior to placing patient of scanning table
c. Patient will be scanned supine position and scanned over the area of interest
d. 1 to 3 bed SPECT imaging with CT imaging for attenuation correction.
e. Additional imaging as requested by radiologist
5. SPECT/CT Reconstruction
a. Nuclear Medicine Parameters
i. Filtered bac kprojection
ii. Butterworth cutoff of .45 and order of 5
iii. Chang's Attenuation Coefficient 0.15
iv. Automatic contours
v. Projection angel is 2
vi. Edge strength of .5
vii. Background threshold of 5
viii. Kernel 3X3
b. CT Parameter
i. Bone Window
ii. Body 5.0 B30s Med Smooth or Body 56.0 B40s Med for hardware
iii. 5 mm Slice
-
i. Filtered bac kprojection
ii. Butterworth cutoff of .45 and order of 5
iii. Chang's Attenuation Coefficient 0.15
iv. Automatic contours
v. Projection angel is 2
vi. Edge strength of .5
vii. Background threshold of 5
viii. Kernel 3X3
-
i. Bone Window
ii. Body 5.0 B30s Med Smooth or Body 56.0 B40s Med for hardware
iii. 5 mm Slice
6. Post processing/Display/Achieve
a. All acquired images will be adjusted for optimal viewing and appropriate labeling.
b. All SPECT images will be displayed in coronal and sagittal planes with and without CT fusion and NM MIP
c. Images will be sent to the PAC's system and Syngo Via for archiving/physician review
b. All SPECT images will be displayed in coronal and sagittal planes with and without CT fusion and NM MIP
c. Images will be sent to the PAC's system and Syngo Via for archiving/physician review